title: Chaotic solar cycles modulate the incidence and severity of mental illness.
mesh_terms: D015984:Causality; D015897:Comorbidity; D004781:Environmental Exposure / Q000706:statistics & numerical data*; D019317:Evidence-Based Medicine; D005843:Geography / Q000379:methods; D006801:Humans; D015994:Incidence; D001523:Mental Disorders / Q000145:classification / Q000453:epidemiology*; D011832:Radiation Injuries / Q000145:classification / Q000453:epidemiology*; D018570:Risk Assessment / Q000379:methods; D012307:Risk Factors; D012720:Severity of Illness Index; D019445:Solar Activity; D012993:Solar Energy / Q000706:statistics & numerical data*; D014466:Ultraviolet Rays; D014481:United States / Q000453:epidemiology